Sunpak?s Digital Camera Flash Enhancement Kit Fits most digital cameras with built-in flash, hot-shoe, or PC synchro contact. Can be used with conventional cameras at flash synchro speeds up to 1/250 second. Wireless slave mode. Ultra-responsive slave for fast recycling and extended battery life. Uses 2 AA alkaline batteries and includes base stand, flexible mini-tripod, 2 AA alkaline batteries and Standard Sync cord. Sunpak is one of the world’s largest manufacturers of electronic flash equipment. It has earned a reputation for advanced technical achievement and superior quality. Sunpak electronic flashes are produced for professionals, advanced amateurs, enthusiasts, and casual photographers. They are designed to work with today’s auto focus cameras having dedicated flash capabilities. All Sunpak flash units offer advanced features, which provide the widest range of creative control. They are supported by a wide spectrum of system accessories, such as dedicated modules, filters, adapters, batteries and more.